PO Box 10082
Lancaster, PA 17605

By Appointment ONLY

Welcome to the PaPHS!

Where every stamp, postmark, and envelope unlocks a chapter of Pennsylvania’s postal past.

Join the PaPHS today for just $25 per year and receive the award-winning Pennsylvania Postal Historian four times a year! It is wonderful a resource for anyone interested in Pennsylvania postal and social history.

Stampless folded letter from Philadelphia, PA to Switzerland with ARC "PAID 21" from April 23, 1857. Additional "BR Service" handstamp in lower left corner.

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PaPHS Highlights

Uncover the lost letters, hidden postmarks, and untold stories that shaped Pennsylvania’s postal past – explore the history one post at a time!